Calacatta Marble Living Room Floor in Vermont Knolls
About This Project
This Vermont Knolls living room received a full floor replacement, removing existing vinyl composite tile and replacing it with large-format 24x48-inch calacatta marble-look porcelain. The slab-on-grade substrate was in good condition but showed two dormant hairline cracks, which were filled with epoxy crack filler and allowed to cure before floor leveler was applied. The leveling step was critical because large-format tile at this size requires flatness within 1/16 inch over any 10-foot run — even a modest low spot telegraphs as visible lippage at the tile edges.
The tile was laid in a straight pattern with a 3/32-inch joint, chosen to emphasize the continuous marble look. Each tile was back-buttered with modified thin-set in addition to the floor application to ensure full coverage with no voids — voids under large-format tile are the most common cause of cracking under foot traffic. The finished floor ties the living room to the neighborhood's improving housing stock along the Vermont corridor.
What We Did
Removed existing VCT, ground down adhesive residue, filled slab cracks with epoxy filler
Applied self-leveling compound to bring slab within spec for large-format tile
Set 24x48 porcelain with back-buttering and leveling clip system
Grouted with unsanded light gray grout, sealed perimeter with flexible sealant at walls
